Computing-scale.



F. MUENGELHARDT' COMPUTING SCALE.

APPLIUATIOH FILED T31R19, 1906 1,005,947, Patented 0615. 1.111911.

26 as this are shown in the De Vilhiss lie-issue UNITED srn'rns PATENT" OFFICE,

"FRANK Ii'l'. ENGELHARDT, OF CHICAGO, ILLINOIS, ASSIGNOR T TOLEDO COMPUTING SCALE CUMPANY, 0F TQLEIDO, OHIO, AND NEWARK, NEW? JERSEY, A CORPORATION OF NEW JERSEY.

COMPUTING-SCALE.

31,005,9et2. Specification of lettersPs-ltent- Patented Oct. 17, 1911. Application filed February 19, 1906. Serial No. 301,888.

To all whom itmciy concern: chart or table cannot he made very large. Be it known that I, FRANK H. ENGE Consequently persons with poor eye-sight- HAnn'r, a citizen of the United States, residhave clitl'ic'ulty in reading the inscriptionsing at Chi ago, in the county of (look and Furthermore when the inscriptions are to he 5 State of Illinois, have invented certain new real along one edge of the intlcx-hanrl the and useful Improvements in Computing light, may strike the scales in such a way Scales, of which the following is a speci-' to cause the index-hand to cast a shatlow fication. I over the table where the inscription is to he The present invention relates to that class read. The present invention aims to ohvito of computing scales in Which the scale hean'i ate these (lilliculties.

is coupled to a pendulum and the pendulum l'Vith. the above stated and incidental ohhas compounded with it an index-hand EX.- jects in view the invention consists in certending over the face of a table or chart. tain novel features of construction and coin- As is Well known an index-hand in a )ifnations of parts the essential elements scale of the alcove type vcarries one or more whereof are recitecl in the ain'ieiuled claims series-atnnnhers denoting prices per pound and a prcii'errecl form of embodiment of of commodities to he Wighecl upon the which is specifically described hereinafter scales, and the table or chartcarries conand illustrated in the accompanying (lrawcentric rows of numbers denoting numerical lugs V 0 A) products or multiplication by suchprices 0t saitl drawings Figure I rsi'iresents a per pound of ditl'erent weights, the charttront elevation of con'inuting scales of the, or table carrying inaddition to said rows type above indicated with the present; in of product numerals one or more rows of volition applied thereto; Fig. E2 rep: 'escnts Weight numerals. Such computing; scales a front elevation on a large scale of the up- 7 per nortion of the index-hand and Fig. 3

represents a cross-section of soul inglennancl.

In View of the fact that, a; alreailv stated the computing scales to which theaircscut l0 imentiou relates are not only Well known hut fully disclosed au l tlescrihod in the ahore mentioned l lo Vilhiss patent it wi l unnecessary to go into a detailed llescrip tron thereof, consequently only a, brief enumeration of a few of the elements there oliwill he given.

The referci'ice numeral 1 Li nites the base of the scales, 2, a housing .4 therefrom tot-he left, 3, a tahle or shart n ithin 9O sairl housing, 5, the pivot or Fulcrum oi. the pendulru'u, (3, the pendulum. 8, the scale vention are to render more prominent the beam, 9, the pla'tforin aiul lO, the scale pun. numerical product on the chart or table ancl In previous constructions and as shown in to prevent obscuring such product by a said De VilhisspatenttheincleX-hand which 9 45 shadow cast by the index-hand. Of course rises from SHlCl IiilVOt or fulcrum 5 is conin order to reach the requirements of a I structed to indicate along; its left'hand edgestore-keeper or merchant using scales of i and to assist in locating the particular in this kind the table or chart must carry a scription on the table or chart, the indexlarge number of inscriptions and as it is hand carries a series of fingers designedto also desirable to confine the scales to reapassalong the graduations of the several s onahledimensions the inscriptions on the rows of inscriptions on said table or chart.

Patent No. 12,029, (laterl Segternher 9, 11362, and their general inotle oi operation is well understoodas scales oi this character are in general use at the present time. it will not. o he necessary therefore to (lwell upon the general mode of operation of such scales. Suffice it to say that the index-hand sweeping over the face of the table or chart will come to rest at. a position determined by the 35 Weight of the connnoclity in the scale pan and the proper amount to he chargecl for such commodity will be ascertained by rear ing from the chart or table atljaee to t price per pound appearing on the inden- 40 hand.

The principal objects of the present in .which needs no detailed explanation here.

As also shown in said patent the indexhand carries two rows of price per pound numerals which as explained in said patent t are inscribed on said hand in contrasting l colors. l urthermoi'e the chart or table carrics two rows of weight numerals in concentric arcs or circles at the upper part of the chart or table and these two rows are tau-respondingly inscribed. in contrasting colors. The double row or series of price per pound numerals and weight numerals are tor the purpose of. increasing the capacity of the scales in a well known manner It is mentioned because the present invention is shown adapted to scalcs having this capability for ditlerent capacities. The index-hand as here shown conn'nises a supporting end l embracing the fulcrum or pivot 5'and to which are fastened two bars 11 and 12 preferably composed of light metal such as aluminum bent so as to provide channels on the inner side as shown in Fi 3. A magnifying glass 13 engages these channels and extends practically the length of the index-hand and on the inner or under-side of said glass there is a hairline 14: which extends throughout the longitudinal center of the glass. Each of the bars 11 and 12- is marked oil on its outer surface into subdivisions and between the subdivisions appear the price per pound inscriptions. The side bars or strips may also have fingers 18 projecting from their inner edges over the glass 13 to facilitate location of the product numerals on the table or chart. The upper end of the index-hand is composed of a frame-piece 15 of generally rectangular outline with centrally located pointers 16 extending toward each other over the two rows of weight numerals. This frame-piece will preferably have its surface colored contrastingly to correspond with the contrasting colors of the tworows of weight numerals and the two rows of price per pound numerals. Thus the lower part of the frame-piece out of which the lower pointer 16 is formed will be colored the same the left-hand row of price per pound numerals and the lower row of weight numerals, whereas the upper half of the frame-piece will be colored to correspond with the right-hand row of price per pound numerals and the upper row of weight nu-- merals. It will be obvious that the pointers 1(3 serve the purpose of indicating the weight of a commodity in the scale pan.

In a construction embodying the present invention the reading of the table or chart is not done as heretofore to the left of the index-hand but the hair-line upon the magnifying glass passes through the gradations of the concentric rows of product numerals on the table or chart and serves as a guide to determine in What particular vertical or t hand.

can of course be employed without 'necesradial line of such gradations the desired product will be found. Hence, to locate such product the operator casts his eye alongthe index hand at the left or right according to whether the scales are adjusted for one capacity or the other, and having located the price per pound ot the connnodity being weighed will tind the product marked by the hair-line ot' the magnifying glass opposite the particular subdivision (it the indcxdiand in which the price per pound appears.

it will be seen that the construction above' described is well calculated to fulfil the objects pri'inaril; stated. The magnifying gla-s is of such t'zharacter asto magnify the numeral laterally and not distort the curved lines which separate the series of product numerals. This magnifying of the particular inscription which is to be read upon the court or table ellectually accomplishes one of the objects heretotore stated. I The other object heretofore stated is accomplished by the spacing of the reading line from the edges of the index-hand which will be seen to effectually prevent any obscuring of the inscriptions on the table or chart by shadows cast upon the latter by portions ot' the index The latter feature of the invention sarily using a magnifying glass. It is obvi one the reading line might be carried between the two side bars or strips of the index-hand otherwise than upon such glass. In such case the side bars or strips need not necessarily be channeled. For that matter the channeling is not essential even when the glass is used for the latter might be 'held in place through other instrumentalities.

Of course it is not essential. in all cases that there be two side bars or strips, for the scales might not have the provisions for difterent capacities. .Having but a single capacity there would not be two rows of price per pound numerals in the index-hand. Consequently there would be no necessity for two graduated side barsor strips.

Dther modifications of the construction here shown can be made without departing from the spirit and scope of the present 7 invention.

hat is claimed is: 1. In computlng scales of the character described, the combination with a chart of computations, of an index-hand overlying the same and having confronting bars'or strips spaced apart and bearing di rout longitudinal series of graduated price-nu merals correspondingly disposed and .a in-" tervening body supplying a reading line extending between the said bars spaced from the confronting edges thereof to intersectcomputations on the chart so that the latter may be read from either of the confronting edges of the said index-hand bars or strips while the index-hand stands in a single position. p

In computing scales of the character described, the combination with a chart of computations, of an index hand overlying the same and bearing dillerent longitudinally extending series of graduated price numerals spaced apart and co'rres pond in gly disposed, said index hand having a transparency longitudinally coextensive with said series of price numerals and a reading line associated with said transparency and laterally spaced from both series of price numerals to intersect computations on the chart that the latter may he read from either of the series of price numerals while the index hand stands in one position.

3. In computing scales of the character described, the combination with a chart of computations, of an index-hand overlying the same and hearing dilterent longitudinally extending series of graduated price numerals spaced. apart and correspondingly disposed, said index-hand haying magnifying longitudinally coextensive with said. series of price numerals and a reading li e associated with said magnifying glass and laterally spaced from both series of price numerals to intersect con'iputatlons on the chart so that the latter may he read from either of the series of price numerals while the index-hand stands in one position.

at. in computing scales oi. the character described. the c mibimltion with a chart of computations, of an index hand overlying the same and having ccmtrouting ha or strips spaced apart and bearing different longitudinal series of graduated price numerals thereon correspondingly disposed, and a magnifying glass between said bars with a readingiline spaced from the confronting edges thereof to intersect computations on the chart so that the latter may he read from either of the confronting edges of the "said bars or strips while the index hand stands in a single position.

In computing scales of the character describml, the con'ibination with a chart hav- Eng concentric rowsot computations and a, row of weight grtuluations concentric thcrewith: of an index hand cxtemling radially of said chart and baring longitudinal series of graduated price nun'icrals and a reading liuc spaced laterally therefrom and in a fixed relation thereto and weight pointers extending toward each other in aliucmeut with and in fixed relation to said reading line.

(3. In computing scales of the character described, the combination with a chart of weights and computations, of an index hand overlying the same and having weight pointers cxteiuilingz toward each other and bearing a longitudinally extending series of graduated price numerals, said index hand having a transparency longitudinally coextensive with said series of price graduations and a reading line associated. with said trans parency and extending parallel with the series of price numerals and in alincmcnt with the weight pointers to intersect computations on the chart.

7. in computing scales of the character described, the combination with a chart ot weights tll lfl COll'lPlllflilOIlS, of an index hand. overlying the same and having weight point ers extending toward each other and hearing a longitudinally extending series of graduated price numerals, said index hand having magnifying glass longitudinally coextensive with said series of price numerals and a. reading line associated with said magnifying glass and extending parallel with. the series of price numerals and in alinement with the weight pointers to: intersect computations on the chart.

8. In computing scales of the character desoril'ied, the combination with achart of weights and computations, of an index hand overlying the same and having weight pointers extending toward each other and bear ing longitudinally extending series of graduated price nun'ierals spaced apart and correspondingly disposed, said indexhand hav ing a transparency longitudinally co-extensive with said. series of price numerals and a reading line associated with said transparency and laterally spaced from both series of price numerals and in alinement with the weight pointers to intersect com.- putations on the chart; substantially as and for the purpose described.

9. in computing scales of the character thscribed, the comb nation with a, chart of weights and con'iputations, of an index hand overlying the same and having weight pointers extending toward each other and hearing longitudinally extending series of price numerals spaced apart and correspondingly disposed, said index hand having magnifying glass longitudinally coextensive with said series of price graduations and a read inn line associated with said magi'iitying glass and laterally spaced from both series of price numerals and in alinement with the weight pointers to intersect computations on the chart substantially as and for the purpose described.

10. Tu computing scales of the character described, an index hand having weight, pointers extending toward each other and spaced side bars bearinggraduated price unit numerals; and an interveninc body supplying a reading line midway between said side bars in aliuement with the weight pointers.

11. In computing scales of the character described, an index hand having weight pointers extending toward each other and spaced side bars bearlng graduated price unit numerals; and a glass between said bars snppl 'mp; a readmg hne 1n ahnement wlth the welghtpolnters.

12. In computing scales of the character dcscrflxid, an index hand having weight polntors extomhng inward each other and spaced snlo burs hem-111p; graduated prlcc 

